Method of impregnating clothes and the like as a protection from moths



' Patented Jan. 8, 1924.

UNITED, "STATES- PATENT OFFICE.

ERWIN NAEFE, OF BERLIN-BRITZ, GERMANY.

METHOD OF IMPBEGNATING CLOTHES AND THE LIKE AS A PROTECTION FROM NOTES.

No Drawing.

the like as a Protection from Moths, of,

which the following is a specification.

One known remedy against the destruction of woolen fabrics and the like by moths is to impregnate the article with an antimony compound, the compound being formed on the fibre by a Wet process.

This wet process is not suitable for the treatment of clothes, upholstered furniture,

l5 furs and other articles of comparatively hi h value.

, his invention relates to a method whereby such articles may be safely and effectively impregnated, and consists in applying to them, by spraying or the like, an alcoholic antimony-tannate solution.

If tannin or a similar tanning substance is dissolved in a 70% alcohol, and tartar emetic or another antimony salt is dissolved in a separate alcohol bath, and if the two solutions are mixed, it will be found that the antimony-tannate, instead of precipitating, as might be expected, remains in solution. A mixture of this nature, therefore, can be applied by means of a spraying device or a sponge, or in some other fashion, to the Application filed September 5, 1922.

Serial No. 586,326.

above-mentioned articles by way of protecting them from moths.

The alcoholic solution will penetrate the fibres quicker and .far more effectively than the Watery solution, and its proportioning relative to the fibres becomes much easier.

The articles can also be treated on the dry-cleaning principle, and the method may be applied in connection with steam or electric treatment.

A hydrocarbon such as benzene or the 1 forth.

2. A method of impregnating clothes and the like as a protection from\ moths, consisting in applying to them by spraying or the like an alcoholic solution of antimonytannate mixed with benzine, substantially as and for the purpose set forth.

. ERWIN NAEFE. 

